Oaks Christian put away Bishop Diego with a strong third quarter on Wednesday on the way to a 72-53 Tri-Valley League decision.
The Cardinals were down by just six at halftime until the Lions pulled away.
Caleb Richey recorded 27 points and Thomas Lash had 12.
Bishop Diego (13-12, 3-7) will look for an at-large CIF berth when the brackets are released on Sunday.
The Lions finished second in TVL play with a record of 8-2.
